test_popup_blocker_postmessage.html

Enable keyboard shortcuts

<!DOCTYPE html>

<html>

<head>

  <meta charset="utf-8">

  <title>Test for triggering popup by postMessage</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script src="/tests/SimpleTest/EventUtils.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>

</head>

<body>

<button id="target">click me</button>

<script>

function sendMouseEvent(element, eventName, button) {

  synthesizeMouseAtCenter(element, {type: eventName, button});

add_setup(async function() {

  // Deny popup permission.

  const DENY_ACTION = SpecialPowers.Ci.nsIPermissionManager.DENY_ACTION;

  let xorigin = SimpleTest.getTestFileURL("").replace(location.hostname, 'mochi.xorigin-test');

  await SpecialPowers.pushPermissions([

    {'type': 'popup', 'allow': DENY_ACTION,

     'context': document},

    {'type': 'popup', 'allow': DENY_ACTION,

     'context': xorigin}

]);

  await new Promise(resolve => SimpleTest.waitForFocus(resolve));

});

const LEFT_BUTTON = 0;

const MIDDLE_BUTTON = 1;

const RIGHT_BUTTON = 2;

let target = document.getElementById("target");

let waits = [];

target.addEventListener("mouseup", () => {

  waits.push(Promise.withResolvers());

  window.postMessage({ openPopup: waits.length - 1 }, "*");

});

window.addEventListener("message", (e) => {

  if (e.data.openPopup != null) {

    let w = window.open("");

    ok(w, "Should allow popup");

    if (w) {

      w.close();

    let w2 = window.open("");

    ok(!w2, "Should block another popup");

    if (w2) {

      w2.close();

    waits[e.data.openPopup].resolve();

});

add_task(async function testMouseInitiated() {

  sendMouseEvent(target, "mousedown", LEFT_BUTTON);

  sendMouseEvent(target, "mouseup", LEFT_BUTTON);

  await Promise.all(waits.map(x => x.promise));

});

</script>

</body>

</html>